CN223011789U - A molding die for automobile differential case with good cooling effect - Google Patents

Abstract

The utility model particularly relates to an automobile differential shell forming die that cooling effect is good, which comprises a housin, fixedly connected with lower mould in the casing, evenly distributed is provided with a plurality of heat dissipation grid plates on the lower mould outer wall, casing one side fixedly connected with connecting plate, the one end fixedly connected with fan of casing is kept away from to the connecting plate, one side department symmetric distribution fixedly connected with two spray pipes that are close to the connecting plate in the casing, the both sides evenly distributed fixedly connected with of every spray pipe has a plurality of shower nozzles, heat conduction is to on the heat dissipation grid plates, the fan is bloied in the casing, the heat on the heat dissipation grid plates is taken away in the air current, spout a small amount of water smoke through shower nozzle department, the water smoke evaporates under the thermal effect, further take away the heat, in order to improve the cooling effect uniformly, avoid the too big messenger lower mould department of difference in temperature to produce stress and appear damaging, the air current passes through with the vapor, and remaining cooling water flows back to the water tank internal recycle from guiding gutter, avoid extravagant.

Description

Automobile differential shell forming die with good cooling effect

Technical Field

The utility model belongs to the technical field of automobile differential case forming dies, and particularly relates to an automobile differential case forming die with a good cooling effect.

Background

Hot extrusion is extrusion by heating a metal material to a hot forging temperature, that is, extrusion by heating a billet to a temperature equal to or higher than the recrystallization temperature of the metal before extrusion. The hot extrusion can not only form nonferrous metals and alloys thereof, low carbon steel, medium carbon steel and the like with good plasticity and relatively low strength, but also form high carbon steel and high alloy steel with relatively high strength, such as special structural stainless steel, high-speed tool steel, heat-resistant steel and the like.

The automobile differential shell is an important component part of the automobile differential, and the power of an engine enters the differential through a driven shaft of a transmission to directly drive the differential shell, so that the requirements on the differential shell are relatively high, and in particular, the mechanical performance and the torque strength of the differential shell are high. At present, when a workpiece is processed by the hot extrusion forming die for the front differential mechanism shell, the workpiece cannot be rapidly cooled and formed, so that the processing efficiency is affected, and after the workpiece is processed, the processed workpiece is inconvenient to take out by workers, so that the processing efficiency is further affected.

The Chinese patent with the bulletin number of CN216324247U discloses a hot extrusion molding die for a front shell blank of an automobile differential mechanism, which comprises an upper die and a lower die, wherein the inner wall of the lower die is slidably connected with a lifting block, a die cavity is formed in the top of the lifting block, electric push rods are fixedly connected to the left side and the right side of the lower die respectively, the tops of the electric push rods are fixedly connected with the lifting block, a cooling device is arranged at the bottom of the lower die, the top of the cooling device is connected with the lifting block, an ejector device is arranged at the bottom of the lifting block, and the bottom of the ejector device is communicated with the cooling device. According to the cooling device, cooling liquid can circulate in the water tank, the cooling pipe, the groove and the water outlet pipe in the cooling and forming process of the workpiece, the refrigerator is used for cooling the cooling liquid, the cooling liquid can further circulate to cool the workpiece, and the cooling effect of the device is improved.

However, the above patent suffers from the following drawbacks:

In the process of hot extrusion processing, the lower die is required to bear extrusion force and also bear the high temperature of a workpiece, the cooling liquid circularly flows in the cooling pipe, and the cooling liquid is cooled by the refrigerator after flowing back into the water tank, so that the cooling effect cannot be uniformly controlled when the cooling liquid is cooled, huge temperature difference is formed inside and outside the lower die to generate stress, and the lower die is in an extruded state, so that cracks are easily caused to the lower die, and the lower die is damaged.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art, and solves the technical problems that when a workpiece is required to be cooled, the heat of the workpiece is conducted to a heat dissipation grid plate, meanwhile, a fan blows air into a shell, the heat on the heat dissipation grid plate is taken away by utilizing air flow to cool, then water is injected into a spray pipe through a high-pressure water pump and a small amount of water mist is sprayed out from a spray nozzle, the water mist evaporates under the action of the heat on the air flow and the heat dissipation grid plate to further take away the heat, the water pressure is gradually increased through controlling the high-pressure water pump to increase the water spraying amount at the spray nozzle, so that the cooling effect is uniformly improved, the damage to the lower die caused by overlarge temperature difference is avoided, the air flow and the water vapor pass through a filter cloth, and the residual cooling water flows back into a water tank from the guide groove to be recycled, and the waste is avoided.

The automobile differential shell forming die comprises a shell, wherein a lower die is fixedly connected in the shell, a plurality of heat dissipation grid plates are uniformly distributed on the outer wall of the lower die, one side of the shell is fixedly connected with a connecting plate in a communicated manner, one end, far away from the shell, of the connecting plate is fixedly connected with a fan in a communicated manner, two water spraying pipes are symmetrically and fixedly connected to one side, close to the connecting plate, of the shell, and two sides of each water spraying pipe are uniformly and fixedly connected with a plurality of spray heads in a distributed manner.

The air current cooperation spun water smoke that produces through the fan plays good cooling effect, and through increasing the water spray gradually, can realize even control cooling effect, realizes linear cooling, avoids producing great difference in temperature and produces stress and make the lower mould damage.

Further, the one end fixedly connected with framework that the connecting plate was kept away from to the casing, fixedly connected with ventilative filter cloth in the framework, be located a plurality of bracing pieces of department fixedly connected with around the lower mould in the casing, every bracing piece and every heat dissipation grid tray fixed connection.

Further, the bottom of the shell is fixedly connected with a water tank, two high-pressure water pumps are symmetrically and fixedly connected in the water tank, and a water pipe is connected between each high-pressure water pump and the top end of the water spraying pipe.

Further, two diversion trenches which are sunken downwards are symmetrically distributed at the bottom of the shell, and the bottom of each diversion trench penetrates through and is communicated with the inside of the water tank.

Residual cooling water in the shell flows back to the water tank from the diversion trench for recycling, so that waste is avoided.

In summary, compared with the prior art, the utility model has the following beneficial effects:

(1) The air current cooperation spun water smoke that produces through the fan plays good cooling effect, and through increasing the water spray gradually, can realize even control cooling effect, realizes linear cooling, avoids producing great difference in temperature and produces stress and make the lower mould damage.

(2) Residual cooling water in the shell flows back to the water tank from the diversion trench for recycling, so that waste is avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an overall elevation view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model at A-A;

FIG. 4 is an enlarged schematic view of the structure of the present utility model B;

FIG. 5 is an exploded view of a portion of the components of the present utility model;

Detailed Description

In order to enable those skilled in the art to better understand the present utility model, the following description will make clear and complete descriptions of the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-5, a molding die for an automobile differential case with good cooling effect comprises a case 24, a lower die 20 is fixedly connected in the case 24, a plurality of heat dissipation grid plates 29 are uniformly distributed on the outer wall of the lower die 20, a connecting plate 26 is fixedly connected on one side of the case 24 in a communicating way, a fan 27 is fixedly connected on one end, far away from the case 24, of the connecting plate 26 in a communicating way (only illustrated in the figure), two spray pipes 31 are symmetrically distributed and fixedly connected on one side, close to the connecting plate 26, of the case 24, and a plurality of spray heads 32 are uniformly distributed and fixedly connected on two sides of each spray pipe 31.

The air current cooperation spun water smoke that produces through fan 27 plays good cooling effect, and through increasing the water spray gradually, can realize even control cooling effect, realizes linear cooling, avoids producing great difference in temperature and produces stress and make lower mould 20 damage.

Referring to fig. 3 and 5, a frame 25 is fixedly connected to one end of the housing 24 away from the connecting plate 26, a ventilation filter cloth 28 is fixedly connected to the inside of the frame 25, a plurality of support rods 30 are fixedly connected to the periphery of the lower die 20 in the housing 24, and each support rod 30 is fixedly connected to each heat dissipation grid 29.

Referring to fig. 3, a water tank 17 is fixedly connected to the bottom of the housing 24, two high-pressure water pumps 18 are symmetrically and fixedly connected to the water tank 17, and a water pipe 14 is connected between each high-pressure water pump 18 and the top end of the water spray pipe 31.

Referring to fig. 5, two downwardly concave diversion trenches 33 are symmetrically arranged at the bottom of the casing 24, and the bottom of each diversion trench 33 penetrates and communicates with the inside of the water tank 17.

The residual cooling water in the shell 24 flows back to the water tank 17 from the diversion trench 33 for recycling, so that waste is avoided.

In this embodiment, initially, with this patent intercommunication power and control system, regard this patent as the lower mould of hot extrusion processing, after carrying out extrusion processing and accomplishing, the heat conduction of work piece is to on the heat dissipation grid tray 29, thereby start fan 27 and blow in to casing 24 afterwards, utilize the air current to take away the heat on the heat dissipation grid tray 29 and cool off for the cooling shaping speed of work piece improves machining efficiency

Meanwhile, the high-pressure water pump 18 is used for injecting water into the water spraying pipe 31 and spraying a small amount of water mist from the spray head 32, the water mist evaporates under the action of heat on the air flow and the heat dissipation grid plate 29, the heat is further taken away, the cooling effect is improved, the water pressure is gradually increased by controlling the high-pressure water pump 18 to improve the water spraying amount at the spray head 32, the cooling effect is uniformly improved, the linear cooling effect is realized, and the damage to the lower die 20 caused by overlarge temperature difference is avoided.

In the cooling process, air flow and water vapor pass through the filter cloth 28, and residual cooling water is intercepted by the filter cloth 28 and finally flows back to the water tank 17 from the diversion trench 33 for recycling, so that waste is avoided.

Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one of the elements" does not exclude the presence of additional identical elements in a commodity or system comprising the element.

While the foregoing description illustrates and describes the preferred embodiments of the present application, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as expressed herein, either as a result of the foregoing teachings or as a result of the knowledge or technology of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the application are intended to be within the scope of the appended claims.

Claims (6)

1. The utility model provides an automobile differential shell forming die that cooling effect is good, its characterized in that, including casing (24), fixedly connected with lower mould (20) in casing (24), evenly distributed is provided with a plurality of heat dissipation grid tray (29) on lower mould (20) outer wall, casing (24) one side fixedly connected with connecting plate (26), one end fixedly connected with fan (27) of casing (24) are kept away from to connecting plate (26), one side department symmetric distribution fixedly connected with two spray pipes (31) that are close to connecting plate (26) in casing (24), every the both sides evenly distributed fixedly connected with a plurality of shower nozzles (32) of spray pipe (31).

2. The molding die for the automotive differential case with good cooling effect according to claim 1, wherein a frame body (25) is fixedly connected to one end, far away from a connecting plate (26), of the case body (24), and ventilation filter cloth (28) is fixedly connected to the inside of the frame body (25).

3. The molding die for the automotive differential case with good cooling effect according to claim 1, wherein a plurality of support rods (30) are fixedly connected to the periphery of the lower die (20) in the shell (24), and each support rod (30) is fixedly connected with each heat dissipation grid plate (29).

4. The molding die for the automobile differential case with good cooling effect according to claim 1 is characterized in that a water tank (17) is fixedly connected to the bottom of the shell (24), and two high-pressure water pumps (18) are symmetrically and fixedly connected to the water tank (17).

5. The molding die for the automotive differential case with good cooling effect according to claim 4, wherein a water pipe (14) is connected between each high-pressure water pump (18) and the top end of the water spray pipe (31).

6. The molding die for the automotive differential case with good cooling effect according to claim 1, wherein two downwardly concave diversion trenches (33) are symmetrically distributed at the bottom of the case (24), and the bottom of each diversion trench (33) penetrates through and is communicated with the inside of the water tank (17).